Alex Siddle

Technical Assistant


Alex joined the profession in 2020 after completing his PhD at Imperial College London. He worked with international colleagues to analyse data from NASA and ESA spacecraft to characterise particular regions of Mars’ atmosphere. Prior to this, Alex graduated from Lancaster University in 2016 with a degree in Physics, Astrophysics and Space Science (MPhys). His final year project was focused on studying the aurora at Saturn. Before joining Dehns in 2023, Alex worked as a technical assistant at another private practice.


Types of client and client work

Alex has worked with a range of clients, primarily in the field of engineering. He has experience prosecuting UK, European and PCT patent applications, as well as experience in EP oppositions and freedom to operate opinions.



Alex has experience in various engineering sectors, including medical devices, hygiene products, household appliances, and automotive components.


Qualifications and memberships

  • Certificate in Intellectual Property Law, Queen Mary University of London (2022)
  • Student Member of the Chartered Institute of Patent Attorneys
  • Student Member of the European Patent Institute


Higher Education

PhD, Physics, Imperial College London, 2020 (Thesis title: Aeronomy of Mars: An observational study of the dynamic Martian upper atmosphere).

MPhys, Physics, Astrophysics and Space Science (First Class), Lancaster University, 2016.

Contact details

33 Colston Avenue
United Kingdom

+44 (0)117 374 7600


mechanical engineering